<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>关于剧中</title>
    <style>
        .box {
            width: 400px;
            height: 200px;
            border: 2px solid black;
            font-size: 32px;
            /* margin-left: auto;
            margin-right: auto; */
            /* margin: 0 auto; */
            margin: auto;
            text-align: center;
        }
    </style>
</head>

<body>
    <div class="box">
        标哥哥很帅
    </div>
</body>

</html>